Free Printable multiplication and division of complex number

Free Printable Worksheets

Worksheets

multiplication and division of complex number

Total questions: 8

Worksheet time: 14mins

Name

Class

Date

1.

a)

10

b)

-10

c)

10i

d)

-10i

2.

What is the complex conjugate of 4-3i?

a)

A. 1/(4-3i)

b)

B. 1/(4+3i)

c)

C. -4 + 3i

d)

D. 4 + 3i

3.

What is the conjugate of -2+5i?

a)

-5+2i

b)

-2-5i

c)

2+5i

d)

5-2i

4.

How do you write a complex number?

a)

a-bi

b)

a+bi

c)

ai+b

d)

ai-b

5.

Simplify:
(10+ 15i)-(48 - 30i)

a)

58 - 45i

b)

58 - 15i

c)

-38 - 15i

d)

-38 + 45i

6.

Simplify
2i - 7i + 10

a)

-5i+10

b)

5i

c)

9i+10

d)

5i+10

7.

What letter represents an imaginary number?

a)

a

b)

i

c)

j

d)

x

8.

Simplify i²³

a)

i

b)

-1

c)

1

d)

-i

100 %

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